*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html,body{
    height: 100%;
}
body{
    display: flex;
    flex-direction: column;
}

/* .clear:after{
    content:"";
    display:block;
    width:0;
    height:0;
    overflow:hidden;
    clear:both;
} */
a,u,s,del{
    text-decoration: none;
    color: inherit;
    display: block;
}
ul li{
    list-style: none;
}
b,strong,h1,h2,h3,h4,h5,h6{
    font-weight: normal;
    font-size: 16px;
}
i,em{
    font-style: normal;
}
img{
    display: block;
}